3900972 has 12 divisors (see below), whose sum is σ = 9102296. Its totient is φ = 1300320.

The previous prime is 3900943. The next prime is 3900989. The reversal of 3900972 is 2790093.

3900972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162529 + ... + 162552.

Almost surely, 2^3900972 is an apocalyptic number.

It is an amenable number.

3900972 is an abundant number, since it is smaller than the sum of its proper divisors (5201324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3900972 is a wasteful number, since it uses less digits than its factorization.

3900972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325088 (or 325086 counting only the distinct ones).

The product of its (nonzero) digits is 3402, while the sum is 30.

The square root of 3900972 is about 1975.0878461476. The cubic root of 3900972 is about 157.4191673907.

The spelling of 3900972 in words is "three million, nine hundred thousand, nine hundred seventy-two".